The paper Exercise Thermoregulation and

Chapter 11, Problem 11.8

(choose chapter or problem)

The paper Exercise Thermoregulation and Hyperprolactinaemia (Ergonomics, 2005: 15471557) discussed how various aspects of exercise capacity might depend on the temperature of the environment. The accompanying data on body mass loss (kg) after exercising on a semi-recumbent cycle ergometer in three different ambient temperatures (6C, 18C, and 30C) was provided by the papers authors. Cold Neutral Hot 1 .4 1.2 1.6 2 .4 1.5 1.9 3 1.4 .8 1.0 4 .2 .4 .7 Subject 5 1.1 1.8 2.4 6 1.2 1.0 1.6 7 .7 1.0 1.4 8 .7 1.5 1.3 9 .8 .8 1.1 a. Does temperature affect true average body mass loss? Carry out a test using a significance level of .01 (as did the authors of the cited paper). b. Investigate significant differences among the temperatures. c. The residuals are .20, .30, .40, .07, .30, .00, .03, .20, .14, .13, .23, .27, .04, .03, .27, .04, .33, .10, .33, .53, .67, .11, .33, .27, .01, .13, .24. Use these as a basis for investigating the plausibility of the assumptions that underlie your analysis in (a).